204003680 has 48 divisors (see below), whose sum is σ = 485687664. Its totient is φ = 80970240.

The previous prime is 204003673. The next prime is 204003713. The reversal of 204003680 is 86300402.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16094 + ... + 25826.

It is an arithmetic number, because the mean of its divisors is an integer number (10118493).

Almost surely, 2^204003680 is an apocalyptic number.

204003680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204003680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242843832).

204003680 is an abundant number, since it is smaller than the sum of its proper divisors (281683984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204003680 is a wasteful number, since it uses less digits than its factorization.

204003680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9879 (or 9871 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 204003680 is about 14282.9856822725. The cubic root of 204003680 is about 588.6800714214.

The spelling of 204003680 in words is "two hundred four million, three thousand, six hundred eighty".